This Figure shows a block diagram of the transmit path. Figure 29-2: PCS Transmit Path X-Ref Target - Figure 29-2 The PCS transmit block has the following features. •Transmit buffer management. •8B/10B encoder for PCIe v2.0, DisplayPort, and USB3.0 only. Other protocols contain the encoder in the MAC IP. •Transmit power state finite state machine (FSM). •Low-frequency periodic signal (LFPS)/beacon transmitter (USB 3.0 and PCIe). •Symbol (comma) generator for PCIe v2.0 and USB3.0 only. Other protocols contain the generator in their MAC IP.